Home / 156,907.82-216,533.30-85,288.13

Finding the Fourth Proportional to 156,907.82, 216,533.30 and 85,288.13

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Solution

The fourth proportional to 156,907.82, 216,533.30 and 85,288.13 is: 117,697.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,907.82 : 216,533.30 = 85,288.13 : x
  2. Step 2: Convert to fraction form
    156,907.82/216,533.30 = 85,288.13/x
  3. Step 3: Cross multiply
    156,907.82x = 216,533.30 × 85,288.13
  4. Step 4: Simplify right side
    156,907.82x = 18,467,718,730.62
  5. Step 5: Solve for x
    x = 18,467,718,730.62/156,907.82
  6. Step 6: Final answer
    x = 117,697.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.